(vb.) A slightly offensive term meaning to fail, to mess things up, or to inevitably ruin the end product.
(adj.) Describing a person or thing as being a failure, or known for ruining things.
(noun) Someone or thing that is a failure and will screw things up for you.
(adjective) You just went George Bush on the entire thing!
(noun) She's a George Bush. Don't hire her.
(verb) Don't Bush this up!